Debian Security Advisory

DLA-1643-1 krb5 -- LTS security update

Date Reported:
25 Jan 2019
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2018-5729, CVE-2018-5730, CVE-2018-20217.
More information:

krb5, a MIT Kerberos implementation, had several flaws in LDAP DN checking, which could be used to circumvent a DN containership check by supplying special parameters to some calls. Further an attacker could crash the KDC by making S4U2Self requests.

For Debian 8 Jessie, these problems have been fixed in version 1.12.1+dfsg-19+deb8u5.

We recommend that you upgrade your krb5 packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: